{"id":"ocp-meyer-vs-polymorphic-interpretation","text":"OCP has two interpretations: Meyer's 1988 version uses concrete implementation inheritance, while the polymorphic version (1990s, Robert C. Martin) uses abstract base classes and interfaces.","truth_value":"IN","source":"entries/2026/06/17/open-closed-principle.md","source_url":"https://en.wikipedia.org/wiki/Open%E2%80%93closed_principle","source_hash":"","justifications":[],"dependents":["ocp-evolved-from-inheritance-to-abstraction","ocp-historical-evolution-recapitulates-paradigm-shift"],"metadata":{"last_premise_reviewed":"2026-06-17T18:19:22","premise_review_result":"pass"},"created_at":"2026-06-17T17:04:08+00:00","updated_at":"2026-06-17T17:04:08+00:00","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"ocp-meyer-vs-polymorphic-interpretation","truth_value":"IN","reason":"premise"}]}}